org.hibernate.LazyInitializationException: failed to lazily initialize a collection of role: br.com.mauda.example.model.Artista.musicas, could not initialize proxy – no Session
at org.hibernate.collection.internal.AbstractPersistentCollection.throwLazyInitializationException(AbstractPersistentCollection.java:569)
at org.hibernate.collection.internal.AbstractPersistentCollection.withTemporarySessionIfNeeded(AbstractPersistentCollection.java:188)
at org.hibernate.collection.internal.AbstractPersistentCollection.initialize(AbstractPersistentCollection.java:548)
at org.hibernate.collection.internal.AbstractPersistentCollection.read(AbstractPersistentCollection.java:126)